scholarly journals Evaluation of Pole-type French bean (Phaseolus vulgaris L.) Genotypes for Agro-Morphological Variability and Yield in the Mid Hills of Nepal.

2020 ◽  
Author(s):  
Santosh Kalauni ◽  
Salina Pant ◽  
Binod P. Luitel ◽  
Bishnu Bhandari
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Production ◽  
Quantitative Traits ◽  
Crop Improvement ◽  
Morphological Variability ◽  
French Bean ◽  
Seed Color ◽  
Color Analysis ◽  
Improvement Program ◽  
Improvement Programs

Abstract Knowledge of genetic diversity is crucial to assess the variability of genotypes and their potential use in crop improvement program. The present experiment was conducted at Horticultur Research Station (HRS), Dailekh (1300 masl) for three years during 2016-2018 to study the agro-morphological variability and performance of six genotypes of French bean (Phaseolus vulgaris L.) for pod and seed yield. The genotypes viz; Bhatte, Chaumase, Dhankute Chirrke, WP Con Bean, White OP and Trishuli were experimented in Randomized Completely Block (RCB) design with four replications. Observations were recorded on 14 qualitative and 12 quantitative traits. Among the qualitative traits, French bean genotypes observed variability w.r.t. stem pigmentation, leaf color, leaflet shape, stem hairyness, flower color, pod color, pod shape, pod cross section, pod beak position, pod appearance, seed size, seed shape and seed color. Analysis of variance for quantitative traits showed significant differences among all the genotypes for all the characters studied. Three year mean results showed the genotype Chaumase (35.0 t/ha) followed by Trishuli (28.0 t/ha), WP Con Bean (24.6 t/ha) and White OP (22.9 t/ha) recorded the maximum green pod yield. Similarly, genotypes Chaumase (2.1 t/ha), Trishuli (2.1 t/ha), Dhankute Chirrke (1.44 t/ha) and White OP (1.09 t/ha) were found promising for seed production purpose. The agro-morphological variation observed in growth and pod characters could be utilized in variety improvement programs. Future research work needed to be focused on the further evaluation of these genotypes under different production system for yield and seed production and to identify traits useful for crop improvement.

scholarly journals Population structure and genetic diversity analysis in Sali (Oryza sativa) rice germplasm of Assam using microsatellite markers

2021 ◽  
Vol 58 (2) ◽  
pp. 279-286
Author(s):  
Sandhani Saikia ◽  
Pratap Jyoti Handique ◽  
Mahendra K Modi
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
Genetic Improvement ◽  
Crop Improvement ◽  
Mean Value ◽  
Diversity Analysis ◽  
Rice Cultivars ◽  
Improvement Program ◽  
Information Index ◽  
Improvement Programs

Genetic diversity is the source of novel allelic combinations that can be efficiently utilized in any crop improvement program. To facilitate future crop improvement programs in rice, a study was designed to identify the underlying genetic variations in the Sali rice germplasms of Assam using SSR markers. The 129 SSR markers that were used in the study amplified a total of 765 fragments with an average of 5.93 alleles per locus. The Shannon's Information Index was found to be in the range from 0.533 to 1.786. The Polymorphism Information Content (PIC) fell into the range from 0.304 to 0.691 with a mean value of 0.55. The overall FST value was found to be 0.519 that indicated the presence of genetic differentiation amongst the genotypes used in the study. The Sali population was divided into two clusters. The information obtained from the present study will facilitate the genetic improvement of Sali rice cultivars.

scholarly journals Crop improvement in the era of climate change: an integrated, multi-disciplinary approach for common bean (Phaseolus vulgaris)

2011 ◽  
Vol 38 (12) ◽  
pp. 927 ◽  
Author(s):  
Phillip E. McClean ◽  
Jimmy Burridge ◽  
Stephen Beebe ◽  
Idupulapati M. Rao ◽  
Timothy G. Porch
Keyword(s):  
Climate Change ◽  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Association Analysis ◽  
Genome Sequence ◽  
Crop Improvement ◽  
Stress Conditions ◽  
Population Increase ◽  
Improvement Programs ◽  
Global Population

Climate change and global population increase are two converging forces that will jointly challenge researchers to design programs that ensure crop production systems meet the world’s food demand. Climate change will potentially reduce productivity while a global population increase will require more food. If productivity is not improved for future climatic conditions, food insecurity may foster major economic and political uncertainty. Given the importance of grain legumes in general – common bean (Phaseolus vulgaris L.) in particular – a workshop entitled ‘Improving Tolerance of Common Bean to Abiotic Stresses’ was held with the goal of developing an interdisciplinary research agenda designed to take advantage of modern genotyping and breeding approaches that are coupled with large scale phenotyping efforts to improve common bean. Features of the program included a multinational phenotyping effort to evaluate the major common bean core germplasm collections and appropriate genetic populations. The phenotyping effort will emphasise the response of root and shoot traits to individual and combined stress conditions. These populations would also be genotyped using newly emerging high density single nucleotide polymorphism (SNP) marker arrays or next generation sequencing technology. Association analysis of the core collections aims to identify key loci associated with the response to the stress conditions. Companion bi-parental quantitative trait loci (QTL) experiments will act as confirmation experiments for the association analysis. The upcoming release of the genome sequence of common bean will be leveraged by utilising population genomic approaches to discover genomic regions that differentiate stress-responsive and non-responsive genotypes. The genome sequence will also enable global gene expression studies that will highlight specific molecular-based stress responses. This collective knowledge will inform the selection of parental lines to improve the efficiency of common bean improvement programs.

scholarly journals Induced Mutants in Locally Adapted Landraces of French Bean (Phaseolus vulgaris L.), their Mutagenic Sensitivity and Mutability for Crop Improvement

2021 ◽  
pp. 10-16
Author(s):  
Sanjeev Kumar ◽  
Mohar Singh ◽  
Nikhil Malhotra ◽  
Archna Joshi Saha ◽  
Sanjay Jambhulkar ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Crop Improvement ◽  
French Bean ◽  
Phaseolus Vulgaris L ◽  
Induced Mutants ◽  
Mutagenic Sensitivity

Effect of location on dwarf French bean (Phaseolus vulgaris L.) seed production and seedling vigour

2020 ◽  
Vol 70 (3) ◽  
pp. 224-232
Author(s):  
Niels P. A. Peeters ◽  
Ian R. Willick ◽  
Ruud H. M. Nabben ◽  
Doug R. Waterer ◽  
Tamara M. O. Verhoeven ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Production ◽  
French Bean ◽  
Phaseolus Vulgaris L ◽  
Seedling Vigour

scholarly journals Integrated Nutrient Management for Seed Production in French bean [Phaseolus vulgaris (L.)]

2017 ◽  
Vol 6 (10) ◽  
pp. 3295-3303
Author(s):  
S. Mohanty ◽  
G.S. Sahu ◽  
S.K. Dash ◽  
S.R. Pradhan ◽  
S. Mangaraj ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Production ◽  
Nutrient Management ◽  
French Bean ◽  
Integrated Nutrient Management ◽  
Phaseolus Vulgaris L

Genetic diversity of french bean (Phaseolus vulgaris L.) under water stress condition

2011 ◽  
Vol 22 (1) ◽  
Author(s):  
AK Choudhury ◽  
MA Karim ◽  
QA Khaliq ◽  
MM Haque ◽  
JU Ahmed ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Water Stress ◽  
Phaseolus Vulgaris ◽  
Stress Condition ◽  
French Bean ◽  
Water Stress Condition
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